Preventative maintenance
Planned inspections and maintenance based on equipment condition, site requirements, and operating priorities.
Commercial solar operations and maintenance
Keep the asset online.
Keep the return moving.
TerraSun coordinates preventative maintenance, corrective repair, monitoring, central inverter support, and performance improvement for commercial solar systems across California’s Central Valley.
Request a site assessment ↗One service partnerFrom first alarm through repair verification and reporting
01 Why ongoing O&M
Installed capacity is not operating performance
Small faults become
expensive downtime.
A commercial solar system can remain energized while producing below expectation. Unresolved alarms, inverter derates, communication failures, damaged components, and deferred maintenance can quietly reduce the value the asset is expected to deliver.
TerraSun creates continuity between monitoring, field service, repair, and owner reporting. The goal is not simply to complete a visit; it is to understand the issue, restore dependable operation, verify the result, and retain the site knowledge for the next decision.
Corrective service
Fault isolation, component replacement, repair coordination, and documented return-to-service verification.
Performance monitoring
Ongoing visibility into alarms, communications, production trends, and issues that require field attention.
Central inverter support
Specialized maintenance, troubleshooting, repair, testing, and closeout for central inverter equipment.
Performance optimization
Data review and targeted field diagnostics designed to identify and recover avoidable production loss.
Owner reporting
Clear issue status, completed-work documentation, open priorities, and practical recommendations.
02 A program shaped to the site
Single assets and operating portfolios
Right work.
Right priority.
Every O&M program begins with the actual asset: its equipment, production profile, access requirements, known issues, and owner objectives. TerraSun can support a one-time recovery effort, scheduled maintenance, or an ongoing program that combines monitoring, field response, and asset-level coordination.
- Initial condition and performance review
- Site-specific maintenance priorities
- Alarm and work-order coordination
- Corrective repair and verification
- Service history and open-issue tracking
- Clear recommendations for the next action
03 What owners gain
Operational clarity
Less guessing.
More accountable uptime.
Earlier visibility
Identify performance and equipment issues before they compound.
Faster decisions
Know what is urgent, what can be planned, and what must be verified.
Field continuity
Carry site knowledge forward instead of restarting at each visit.
Documented closeout
Connect completed work with the production outcome it was intended to restore.
04 Common questions
Commercial solar
O&M answers.
Can TerraSun service a system it did not install?
TerraSun’s service process starts by reviewing the existing equipment, site documentation, performance history, and current condition. The appropriate scope is then established around the asset as it exists.
Can service begin with a one-time problem?
Yes. A defined troubleshooting or corrective-maintenance need can be the starting point. The findings can also inform an ongoing maintenance or monitoring plan when that would benefit the asset.
What information helps start an assessment?
Useful starting information includes system size, site location, equipment type, recent production history, active alarms, prior service records, and the owner’s immediate concerns.
Protect operating performance
Put a service plan
behind your array.
Start with the current performance gap, active faults, or maintenance backlog. We’ll help define the next practical step.
Request a free analysis ↗Or call (855) 65-TERRA